DATE: March 12, 1996 SUBJECT: 3/8/96 EIA IBIS Open Forum Minutes VOTING MEMBERS AND 1996 PARTICIPANTS LIST: AMP Hank Herrmann* Cadence Design C. Kumar* Contec CAE, Ltd. Dileep Divekar*, Norio Matsui Hewlett Packard, EEsof Karl Kachigan, Henry Wu HyperLynx Kellee Crisafulli* IBM (Jay Diepenbrock) INCASES Olaf Rethmeier* Intel Corporation Stephen Peters*, Will Hobbs*, Arpad Muranyi*, John Keifer, Aaron Tang, Duane Quiet, Donald Telian, Jim Kruchowski Interconnectix, Inc. Bob Ross* Meta-Software (Les Spruiell) Mitsubushi Tam Cao Motorola (Ron Werner) National Semiconductor Syed Huq*, Donald Snyder, Chune-Sin Yeh NCR (formerly ATT-GIS) Dave Moxley*, Richard Mellitz NEC (Hiroshi Matsumoto), Quad Design Jon Powell*, Chris Rokusek Quantic Labs (Mike Ventham) Tanner Research, Inc. (Scott Wedge) Texas Instruments Roger Cline, Ben Andresen, Sri Jandhyala, Tareq Shahwan, Dan Phipps Thomson-CSF/SCTF (Jean LeBrun) UniCAD Canada Ltd. Celso Faia* VLSI Technology Dick Ulmer, Sung Oh*, Swami Gangadharan, Daniel Kim, Tom Dockery Zuken-Redac (John Berrie) OTHER PARTICIPANTS IN 1996: Alcatel John Fitzpatrick Altera Vadim von Brzeski Apteq Design System Dan FitzPatrick Compaq Mark Leonard Cypress Bruce Wenniger Digital Equipment Corp. Jeff Chu EIA Patti Rusher IC Works Eric Chen Micron Technology Brian Johnson MicroSim Ralph Perez North Carolina State U. (Michael Steer) Oki Semiconductor Tom Chao* S3, Inc. Sarathy Sribhashyam, Phap Duong Seimans Nixdorf Arnaud Lacariere Tektronix, Inc. Brock Hannibal TRW & Free Model Foundation Robert Harrison Veribest/Integraph Ian Dodd*, David Wiens* Zeelan Technology George Opsahl In the list above, attendees at the meeting are indicated by *. Principle members or other active members who have not attended are in parentheses. Upcoming Meetings: The bridge numbers for future IBIS teleconferences are as follows: Date Bridge Number Reservation # Passcode 3/29/96 (916) 356-9200 1-55737 1119667 All meetings are 8:00 AM to 9:55 AM Pacific Time. We try to have agendas out 7 days before each open forum and meeting minutes out within 7 days after. When you call into the meeting, ask for the IBIS Open Forum hosted by Will Hobbs and give the reservation number and passcode. NOTE: "AR" = Action Required. -------------------------------- MINUTES ------------------------------------- INTRODUCTIONS Tom Chao of Oki Semiconductor introduced himself and indicated that Oki will be making IBIS models for their ASICs. EIA MEMBERSHIP AND TREASURER'S REPORT Hank Herrmann reported that AMP is now a full IBIS member. No treasurer's report was available. MINUTES REPORT, MISC. Jim Kruchowski first name correction in m012969.txt and m021696.txt minutes. MISCELLANY/ANNOUNCEMENTS A simple IBIS default home page now exists on http://www.vhdl.org/pub/ibis/ which is intended to be accessed by the top level vhdl.org. It consists of some background information and a link to the IBIS directories, the official EIA/IBIS home page, and the RAIL directories. Bob Ross would like electronic copies of the Face to Face meeting slides sent to him for putting on vhdl.org. PRESS AND WEB PAGE UPDATES In EDN, March 1, 1996, pg. 50, winibis by Hyperlynx is mentioned. In EE Times, February 26, 1996. pg. 88, IBIS is mentioned in a Quad Design introduction writeup. NEW MODELS Sung Oh reports that VLSI now has dozens of IBIS models available. To get a list, e-mail ibismodel@tempe.vlsi.com Syed Huq suggested that Sung also provide a list of available models on vhdl.org. He can contact Michael Steer to have it set up. OPENS FOR NEW ISSUES None EIA/IBIS 1996 MEMBERSHIP AR - Bob Ross find from Patti Rusher who now are official EIA/IBIS members for 1996. Dave Moxley of NCR and Dileep Divekar of Contec Microelectronics still report not receiving the revised invoice or FAX. DAC STANDARDS BOOTH Jon Powell proposed all official member companies generate their own logo art on 8.5 inch by 11 inch paper with Velcro backing to stick on a poster wall. All members can put this in an array around a central IBIS logo and add any message such as "see us at booth 435". Jon says that you can just print the artwork using a color printer and take it to a print shop and have them mount the artwork on a poster board with Velcro backing. Alternatively, Jon can make the posters from the existing supplied logos. He can still do so for those who request it. However, the preference is for each company to make their own posters. AR - Everyone making posters for DAC please send them to Jon Powell prior to DAC. Bob Ross suggested that non-EIA/IBIS members who are producing IBIS models would also be permitted to have a poster displayed. Will Hobbs suggested "I Speak IBIS" badges. Jon Powell will look into this. This seemed like a very good idea and Jon thinks it will be easy to do. ANSI/EIA-656 INTERNATIONAL RATIFICATION Patti Rusher has received a response request regarding pending IBIS International ratification. The request was to put IBIS into an Express-G format. This appears to be a defacto requirement for EDA standards, such as EDIF 4 0 0. The Express format produces graphical relationships and produces a self consistent document from which a parser can easily be developed. It is still not known what the total impact is. We appear to have three options: Push of International Standardization based on its defacto acceptance and broad support without an Express representation. Attempt to do an Express representation through any number of resources including interested members, university project, and ARPA funding of a contractor. Withdraw the request for international standardization. We are still trying to understand the impact and scope, since the committee representatives are not familiar with Express. AR - Bob Ross invite the commentors to the next IBIS meeting for their direct knowledge and input on the issue. AR - Bob Ross and Will Hobbs will post the comments related to Express-G on the reflector so we can get other opinions. ANSI/EIA-656 PUBLICATION No further status was available. The standard is planned to be available through Global Engineering Documents. IBIS ROSTER UPDATE Bob Ross reported that the 1996 roster is on vhdl.org. It contains all of the official member companies plus the other companies that have responded. Others who have not responded have been removed. The roster will continue to be updated as new responses come in. The old roster is archived. EIA WEB UPDATE Syed Huq reported that the EIA/IBIS home page counters are now working on all pages. He has also added revision numbers to all pages. He has been receiving logo updates and new logos from Cadence, Incases, TI, NCR, Mentor Graphics. VLSI logo has not been received by Jon Powell, and Sung Oh will look into this. Currently Mentor is not a member company so their logo would not be permitted. Once the updates are made (including) some new home page links, Syed will announce the Home page. Syed thanks EIA for their support. Syed would also like to put a model tools section to reference s2ibis and s2iplt, winibis, the cookbook and the parsers. The committee endorsed this expansion. GOLDEN PARSER UPDATE Bob Ross formally submitted the three bugs through the newly established parser reporting system before we issue a parser correction. A bug directory exists, and a BUG form is available there. These old bugs consist of multiple disclaimers, missing legal suffixes in package model matrix data, and failure to detect a minor subparameter syntax error under [Model]. The first and third error does not exist in the original ibis_chk utility. In addition, we would like to see the parser version number printed so people know which parser is being used (e.g., Version 2.1.10) Unfortunately, there is no formal validation suite. However, the fixes should be minor and are important for Specification compliance. Additions to the parser as proposed in EGG10 (later) will not be included. AR - Bob Ross contact Paul Munsey about the time/cost of the fixes. SPICE TO IBIS VERSION 1.2, 2.1 AR - Bob Ross will seek further information regarding the status of the project. Several bugs have been submitted from various sources, but they are not on a formal list. Also Bob reported a VERSION 1.2 bug regarding handling of the Pullup Table in the Clamping region - a double counting of the clamping current. It was suggested that the bug tracking system be expanded to include s2ibis bugs. Subdirectories for each utility can be established. The general e-mail address for submittal can be changed to ibis-bug@vhdl.org. PRIORITIES FOR 1996 Will Hobbs deferred further discussion of priorities for 1996. Instead, he presented the list of priorities from the last meeting. The tabulated list is shown: validation (post 4 or 5 reality checks and add to parser) extended package models (electrical and physical) diodes connectors staggered turn-on buffers feedback scaling better handling of SSO clarification of worst case and best case corners specification parameters (hysteresis, overshoot, etc.) cookbook (may contain validation and corners) new overview more models ... BIRD33 (EGG8) - PHYSICAL PACKAGE DISCUSSION Olaf Rethmeier indicated that computer problems have been fixed and the SULTAN proposal was available for downloading. Bob Ross also put copies on vhdl.org under /pub/ibis/sultan. His version did not print, however. (The problem was discovered later to the size A4 statement in line 750 which can be deleted.) The major discussion centered around Kellee Crisafulli's proposal and also on the fact that there are several other existing proposals. Kellee's proposal is expected to be simpler than SULTAN, EDIF, etc., and is intended to be user easier to use. C. Kumar suggested that an IBIS subset of EDIF could meet the needs - if it were possible to generate. Ian Dodd had a question on whether EDIF required a royalty payment. Further discussion concerned the completeness of Kellee's proposal since it does not include arbitrary shaped or meshed planes. Stephen Peters questioned what were the limitations. AR - Kellee Crisafulli contact Patti Rusher concerning royalties on EDIF and also on the availability of EDIF 4 0 0 itself. [Done - not required, and Patti will make it available.] Will Hobbs proposed a subgroup to get the physical package discussion off center. Such a group was formed and consists of Stephen Peters, C. Kumar, Olaf Rethmeier, Jon Powell, Ian Dodd, and Kellee Crisafulli. The first meeting will be Friday, March 15, 1996, and Stephen will set up the conference call. After some discussion, the groups focus will be to address the physical representation first. Some eventual choices may be to propose BIRD33, to propose an existing representation such as SULTAN or EDIF, or to propose a subset of an existing representation. It will report back at the next meeting. The group can also address the electrical description problem, but it's priority is to deal with the physical description issue first. BIRD31 - CONNECTOR MODELS No report. Bob Ross plans to issue BIRD31.1 BIRD32 PACKAGE MODEL ENHANCEMENT No update from Stephen Peters. C. Kumar is still interested in a Spice- like description. However, Jon Powell proposed a proven Quad Design structure also be considered. His concern continues to be properly describing the inductive coupling polarity of package models. This discussion can be carried by the Physical package subcommittee. BIRD34 (EGG9) - HANDLING STORED CHARGE Bob Ross described BIRD34 as an extension of the old EGG9 proposal. It also includes the assumed formulas and a TT extraction method description which produces the effective value. The method is intended to mimic a real signal. The description was very unclear to Stephen Peters, so it needs to be redone and clarified. Jon Powell has experimental support for modeling TT as long as the series resistance is not too large. He has used C vs. V tables to produce good correlation. EGG10 - PARSER ADDITIONS FOR NUMERICAL CHECKING In the brief time remaining, this topic was introduced. Bob Ross indicated that the first proposal concerning monotonicity checks was not clear since there are both Warning and Error checks already in ibischk2 as a result of extensive past discussions. It is not clear whether the request was for some new capability. Bob also indicated that Stephen Peter's addition to give warning of such parameters as C_comp, C_pkg, etc., should be based on actual values, not the existence of suffixes, since numerical values can be extracted (such as with the monotonocity tests). NEXT MEETING: The next telephone meeting is set for Friday, March 29, 1996. ============================================================================== NOTES IBIS CHAIR: Will Hobbs (503) 264-4369, Fax (503) 264-4210 will_hobbs@ccm.jf.intel.com Server Chipset System Validation Manager, Intel Corp. 2111 NE 28th M/S JF1-57, Hillsboro, OR 97124 USA VICE CHAIR: Jon Powell (805) 988-8250, Fax: (805) 988-8259 jonp@qdt.com Transmission-Line Products Manager, Quad Design 1385 Del Norte Rd., Camarillo, CA 93010 SECRETARY: Bob Ross (503) 603-2523, fax (503) 639-3469 bob@icx.com Modeling Engineer, Interconnectix, Inc. 10220 SW Nimbus Ave, K4, Portland, OR 97223 This meeting was conducted in accordance with the EIA Legal Guides and EIA Manual of Organization and Procedure. The following e-mail addresses are used: ibis-request@vhdl.org To join, change, or drop from either the IBIS Open Forum Reflector (ibis@vhdl.org), the IBIS Users' Group Reflector (ibis-users@vhdl.org) or both. State your request. ibis-info@vhdl.org To obtain general information about IBIS, to ask specific questions for individual response, and to inquire about joining the EIA-IBIS Open Forum as a full Member. ibis@vhdl.org To send a message to the general IBIS Open Forum Reflector. This is used mostly for IBIS Standardization business and future IBIS technical enhancements. ibis-users@vhdl.org To send a message to the IBIS Users' Group Reflector. This is used mostly for IBIS clarification, current modeling issues, and general user concerns. ibischk-bug@vhdl.org To report ibischk2 parser bugs. The Bug Report Form Resides on vhdl.org in /pub/ibis/bugs/bugform.txt along with reported bugs. Information on IBIS technical contents, IBIS participants, and actual IBIS models are available on the IBIS Home page: http://www.eia.org/eig/ibis/ibis.htm Check the pub/ibis directory on vhdl.org for more information on previous discussions and results. You can get on via ftp anonymous, "guest" login from telnet or dial-in (415-335-0110), or send an e-mail request to the automatic archive server, archive@vhdl.org. "IBIS Spoken Here" placards are available from Jon Powell (jonp@qdt.com) for use at trade shows. ==============================================================================